It’s made in China, only thing you’ll hear bad about them. Have had aimpoints, trijicon, delta point and lco , vortex and eotech. For a straight red dot I’ll take a holosun
I've had to send one 507K back twice because the brightness adjustment buttons went wonky. I have another 507K and a 407K that have been holding up fine. But, for people who don't have taxing authority, they are a good value. It's kinda like buying Fenix flashlights instead of SureFires.
